fix: release workflow

Author: vgoat21

.github/workflows/bump-revengai-sdk.yaml

@@ -20,7 +20,7 @@ jobs:
         id: generate-token
         uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
-          app-id: ${{ vars.REVENG_APP_ID }}
+          app-id: ${{ secrets.REVENG_APP_ID }}
           private-key: ${{ secrets.REVENG_APP_PRIVATE_KEY }}
           owner: ${{ github.repository_owner }}
           repositories: |

.github/workflows/release.yaml

@@ -16,7 +16,7 @@ jobs:
         id: generate-token
         uses: actions/create-github-app-token@v1
         with:
-          app-id: ${{ vars.REVENG_APP_ID }}
+          app-id: ${{ secrets.REVENG_APP_ID }}
           private-key: ${{ secrets.REVENG_APP_PRIVATE_KEY }}
           owner: ${{ github.repository_owner }}
           repositories: |